<html>
<meta name="Accept-CH" content="dpr=(https://bar.com/),sec-ch-dpr=(https://bar.com/),device-memory=(https://bar.com/),sec-ch-device-memory=(https://bar.com/),viewport-width=(https://bar.com/),sec-ch-viewport-width=(https://bar.com/),rtt=(https://bar.com/),downlink=(https://bar.com/),ect=(https://bar.com/),sec-ch-ua-arch=(https://bar.com/),sec-ch-ua-platform-version=(https://bar.com/),sec-ch-ua-model=(https://bar.com/),sec-ch-ua-full-version=(https://bar.com/),sec-ch-prefers-color-scheme=(https://bar.com/),sec-ch-ua-bitness=(https://bar.com/),sec-ch-viewport-height=(https://bar.com/),sec-ch-ua-full-version-list=(https://bar.com/)">
<link rel="icon" href="data:;base64,=">
<body>
    <img src="test_img.jpg"></img>
    <img src="https://foo.com/non-existing-image.jpg"></img>
    <iframe src="https://foo.com/non-existing-iframe.html"></iframe>
    <script type="text/javascript">
        document.body.innerHTML += '<img src="test_img.jpg?foo"></img>';
        document.body.innerHTML += '<img src="https://bar.com/non-existing-image.jpg"></img>';
        document.body.innerHTML += '<iframe src="https://bar.com/non-existing-iframe.html"></iframe>';
    </script>
</body>
</html>
